Mixing and vaporizing device for explosive-engines.



No. 67l,7 43v. Patented Apr. 9, l90l. 'C. 0. WHITE.

RIZING DEVICE FOR EXPLDSI VE E-NGINES.

(Application filed Tu 1y 15, 1899.)

MIXING AND VAPO (No Modal.)

m 3 N N n-mgssss INVENTOR CLARENCEO. WHITE.

I BY UNITED STATES- PATENT OFFICE.

CLARENCE 0. WHITE, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OF ONE- HALF TO EDWARD J. KIMBALL, OF SAME PLACE.

MIXI NG AND VAPORIZING DEVICE FOR EXFLOSlVE-ENGINES.

SPECIFICATION forming part of Letters Application filed July 15, 1899.

T0 aZZ whom it may concern/.-

Be it known that I, CLARENCE 0. WHITE, of the city of Minneapolis, county of Hennepin, State of Minnesota, have invented certain new and useful Improvements in Suction Feed Devices for Explosion-Engines, of which the following is a specification.

This invention relates to improvements in suction feed devices for explosion-engines, and particularly for those engines that use a, mixture of air and gasolene vapor for explosion in the engine-cylinder.

One object of this invention is to provide means for feeding the gasolene and mixing it in the right proportion with air for use as vapor in the engine-cylinder.

The particular object of the present invention is to provide a suction feed device for discharging gasolene into the air-duct leading to the cylinder, such feed device being constructed and arranged to maintain a charge of gasolene therein ready to be drawn instantly into the air-duct when the piston within the engine-cylinder recedes and creates a partial vacuum in said air-duct.

My present device may be termed a combined gravity drip and suction feed cup; and the invention consists generally in providing a suitable reservoir arranged in connection with the intake or air duct of a gasolene-en gine and having a feed-duct of inverted-U shape leading upward-from the reservoir and then downward and into the intake or air duct, with means for preventing a continuous fiow of liquid from the reservoir through said feed-duct.

The invention consists, further, in providing in the U-shaped feed-duct an automatic valve adapted to balance a column of gasolane in the feed-duct and to yield when a partial vacuum is created in the intake or air duct, thereby permitting the gasolene in the feed-duct to be drawn out into the intake or air duct and its place to be supplied by the passage of the requisite quantity of gasolene from the reservoir into said feed-duct.

The invention consists, further, in the constructions and combinations hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, forming Patent No. 671,743, dated April 9, 1901.

Serial No. 723,896. (No model.)

part of this specification, Figure 1 is a sectional view illustrating a suction feed device embodying my invention. Fig. 2 is a detail view showing a modification of the device.

As shown in the drawings, 2 represents a portion of the cylinder of an explosion or internal-combustion engine, and 3 a port leading into the cylinder from a firing chamber or chest 4, in which a suitable igniter is arranged.

5 represents the intake or air duct, which is provided with two valves 6 and 7, the latter operating on back pressure from the cylinder to close'the passage between the intake or air duct 5 and the firing chamber or cylinder. The valve 7 is usually provided with a stem 8, on which is a spring 9, that is arranged to seat the valve and upon which stem the governor-arm 10 operates to lock the valve 7 and prevent the passage of vapor to the cylinder when the speed of the engine becomes too high. The valve 6 has sufficient weight to offer some resistance to the entrance of air through the inlet-opening 11,and the diiference in pressure between the atmosphere and the air or vapor in the duct 5 when the valve 7 is open is employed to force or draw in the charge of gasolene from the feed cup or reservoir. The feed-cup consists of a small cup or reservoir 12, which is supplied with gasolene through a pipe 13. An overflow-pipe 14 conducts away the surplus, thereby maintaining the gasolene at a certain height in the cup or reservoir at all times. This cup or reservoir is preferably formed of a cored casting closed at the top. In the center is a vertical por tion 15, which is bored through or otherwise provided with an opening to receive the stem 16 of the pin-valve 17. This valve is adapted to close upon the restricted walls 18 of the Vertical portion of the feed-duct. The lower part 19 of said feed-duct is preferably smaller than the upper part. At one side of the cup or reservoir is the vertical part 20 of the feedduct, which communicates at its bottom through ahole 21 with the body of the cup or reservoir. The hole 21 is normally closed by a valve consisting, preferably, of a ball 22. The top of the part 20 of the duct is preferably closed bya plug or screw 23, which may be removed to permit inspection of the yalve22 and'the cleaning of the duct. ,The horizontal portion 24 of the feed-duct connects the portions 20 and 19, and the parts 20, 24c, and 19 together form an inverted-U shaped duct leading from-the reservoir up- The weight of the ball 22 preferably slightly overbalances the weight of the column of gasolene in the vertical portion 19 of the feed -duct, thus preventing the discharge thereof except when the weight of the valve is overcome by the suction from the duct 5. Should there be any access of air to the top of the vertical portion 19 of the feed-duct, as might occur, for instance, by the leakage of air around the valve-stem 16, the gasolene will run out of that part of the duct, but will remain in the parts 20 and 24:, the valve 22 preventing the gasolene from running back into the reservoir, which it might do if the overflow-pipe 14 was located below the valve 22. When the opening 14 is above the duct 24, as shown in the drawings, the oil or gasolene will stand at the same height in the vertical part 20 of the duct as it does in the reservoir. The quantity of gasolene that is delivered to the intake-duct is regulated by the throttle-valve 17. .The valve 22 will-obviously be closed by back pressure from the intake-duct, thereby preventing the displacement of the gasolene in the feed-duct, so that the gasolene is always present therein ready to be discharged upon the opening of the valves 6 and 7. I usually provide a small air-hole in the top of the reservoir, so that the air-pressure is constant upon the surface of the gasolene in the reservoir. As soon as a partial vacuum is created in the intakeduct the gasolene will be dischargedinstantly into the intake-duct and will be mixed with the air which enters the duct when the valve 16 is lifted from its seat. As here shown, the feed-duct is located directly over the valve '6, so that the gasolene as it enters the intakeduct falls upon the top of the valve 6, and being spattered by striking thereon is intimately mixed with the air which passes into the intake-duct around the edge of said valve. 7

The base of the cup or reservoir is preferably provided with a threaded stem 26, which is screwed into a threaded opening in the top of the intake-duct. Itis obvious, however, that the feed-cup might be arranged to discharge directly into the explosion or igniter chamber or be arranged at any point between the cylinder and the intake-valve 6.

As an additional precaution against the withdrawal of too great a quantity of gas0- lene from the reservoir I may provide a gravity-valve in the lower end of the duct 19, as shown in Fig. 2, in which case said valve may consist of a suitable ball 27, having a stem 28, extending down near the valve 6, so that the raising of the valve 6 will open said valve 27 ,thus permitting the escape 'of gasolene into the intake-valve.

While I prefer to .arrang'e the feed-duct so that the gasolenewill stand in the vertical portion 19 thereof as well as in the portions 20 and 24, yet it is obvious that the device would be operative even it by the entry of air into the upper part of the vertical portion 19 of the duct the gasolene was allowed to run out of that part of the duct.

I do not confine myself to the details of the construction herein shown and described, as it is obvious that the same may be modified in manydetails without departing from my invention.

I claim as my invention 1. The combination, with the intake-duct of an internal-combustion or explosion engine, of a gasolene-reservoir, means for maintaining a constant liquid-level therein, an inverted- U -shaped feed-duct leading upward from said reservoir to a point near the top thereof, and thence leading downward through the bottom of said reservoir into said intake-duct, and means, in'conne'ction with said feed-duct, for preventing a continuous flow of liquid from said reservoir into said intake-duct, substantially as described.

2. The combination, with the intake-duct of an internal-combustion or explosion engine, of a gasolene-reservoir, provided with an inverted-U-shaped feed-duct leading upward from the lower part of said reservoir, thence substantially horizontally, and discharging downward' through the bottom of said reservoir into said intake-duct, and means for maintaining a constant liquid-level in said reservoir, substantially as described.

3. The combination, with the intake-duct of an internal-combustion or explosion en gine, of a gasolene-reservoir, provided with an inverted-U-shaped feed-duct leading upward from the lower part of said reservoir, thence substantially horizontally, and discharging downward through the bottom of said reservoir into said intake-duct, means for maintaining a constant liquid-level in said reservoir, and a suitable air-resistance valve in said intake-duct, substantially as described.

4. The combination, with the intake-duct, of an internal-combustion or explosion engine, of a gasolene-reservoir provided with an inverted- U shaped feed-ductleading upward from the lower part of said reservoir, thence substantially horizontally, and then discharging downward, a valve in said feed-duct preventing backward flow of liquid therethrough, and means for maintaining a constant liquidlevel in said reservoir, substantially as described.

5. The combination, with the intake-duct of an internal-combustion or explosion engine, of a gasolene-reservoir provided with an inverted-U-shaped feed duct leading upward from the lower part ofsaid reservoir, thence substantially horizontally, and then discharging downward, a valve in said feed-ductpreventing the backward flow of the liquid therethrough, an adjustable valve in said feed-d uct regulating the feed of liquid through said feed-duct, and means for maintaining a constant liquid-level in said reservoir, substantially as described.

6. The combination, with the intake-duct of an internal-combustion or explosion engine, of a gasolene-reservoir provided with the inverted- U-shaped feed-duct20, 24 and 19 leading from the lower part of said reservoir and discharginginto said intake-duct, and a valve 22 in said feed-duct preventing the backward flow of liquid therethrough.

7. The combination, with the gasolene-reservoir provided with the inverted-U-shaped feed-duct 20, 24, 19, leading upward from the lower part of said reservoir and discharging through the bottom thereof, of a valve 17 arranged in said duct and adapted to regulate the passage of liquid therethrough, substan tially as described.

8. The combination, with a gasolene-reservoir provided with an inverted- U-shaped feed-duct 20, 24, 19, leading from the lower part of said reservoir, of a valve 22 arranged in said duct and preventing the backward flow of liquid therethrough, substantially as described.

9. The combination, with the gasolene-reservoir, provided with an inverted-U-shaped feed-duct 20, 24, 19, leading upward from the lower part of said reservoir, of a valve 17 arranged in said duct and adapted to regulate the passage of liquid therethrough, substantially as described.

10. The combination, with a gasolene-reservoir provided with an inverted-U-shaped feed-duct 20, 24, 19, leading from the lower part ofsaid reservoir, of the valve 22 arranged in said duct and preventing the backward flow of liquid therethrough, and an adjustable valve 17 arranged in said duct and adapted to regulatethe' feed of liquid through said duct, substantially as described.

11. The combination, with the intake-duct of an internal-com bustion or explosion engine, of a reservoir, a feed-duct leading from the lower part of said reservoir to said intakeduct, a balancing back-check valve provided in the feed-duct, a regulating-valve also provided therein, a gravity-valve located in the lower part of the feed-duct, and an intake resistance-valve for said intake-duct adapted when raised to open said gravity-valve, substantially as described.

12. The combination, with theintake-dnct of an internal-combustion or explosion engine having a suitable air-inlet, of a feed device comprising a closed cup or reservoir provided with the inverted- U-shaped feed-duct 20, 24, and 19, a regulating-valve provided in the part 19 of said duct, a gravity back-check balancing-valve 22 provided in the part 20 of said duct and adapted to close the passage leading to said reservoir and to prevent the forcing back of the liquid into said reservoir while permitting the flow of liquid therefrom when a suction is created in the intake-duct, substantially as described.

In testimony whereof I have hereunto set my hand, this 11th day of July, 1899, at Minneapolis, Minnesota.

CLARENCE 0. WHITE.

In presence of- G. G. HAWLEY, M. E. GooLEY. 

